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1. |
What is the slope of  in parallelogram ABCD? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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2. |
Use elimination to solve the system of equations.
-x + 2y = 18
x + 8y = -38 |
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A. |
(-5, -1) |
B. |
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C. |
(-22, -2) |
D. |
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Hint |
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3. |
Simplify (3a4b5c)4. |
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A. |
7a16b20c4 |
B. |
81a16b20c4 |
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C. |
12a8b9c5 |
D. |
3a16b20c4 |
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Hint |
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4. |
What is the slope of the line through the points A(-3, 4) and B(2, -1)? |
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A. |
-3 |
B. |
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C. |
-1 |
D. |
1 |
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Hint |
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5. |
The graph of y = -4x2 - 1 is _____. |
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A. |
None of these is correct. |
B. |
a circle |
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C. |
a parabola |
D. |
a straight line |
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Hint |
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6. |
Simplify  |
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A. |
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B. |
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C. |
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D. |
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Hint |
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7. |
Find the equation that has direct variation. |
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A. |
y = 5x + 1.3 |
B. |
y = 0.8x + 9 |
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C. |
y = –3x – 1 |
D. |
y = 4x |
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Hint |
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8. |
Which characteristic describes a graph that is linear and has direct variation. |
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A. |
Variables x and y are not proportional. |
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B. |
The equation has the form y = mx. |
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C. |
The equation has the form y = mx + b. |
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D. |
The graph does not pass through (0, 0). |
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Hint |
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9. |
Find the equation that has direct variation. |
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A. |
y = 0.8x + 9 |
B. |
y = –3x – 1 |
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C. |
y = 4x |
D. |
y = 5x + 1.3 |
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Hint |
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10. |
Find the graph that is nonlinear. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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11. |
Which line is parallel to the line listed below?
 |
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A. |
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B. |
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C. |
y = 2x - 5 |
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D. |
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Hint |
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12. |
How many diagonals does a 25-sided polygon have? |
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A. |
300 |
B. |
275 |
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C. |
25 |
D. |
550 |
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Hint |
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13. |
How does a affect graphs of equations in the form of  ? |
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A. |
positive values of a move the graph to the left, negative values move it to the right |
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B. |
a affects the length of the graph |
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C. |
a affects the width of the graph |
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D. |
negative values of a move the graph to the left, positive values move it to the right |
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Hint |
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14. |
What is a conjecture? |
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A. |
a ''shot in the dark'' guess that hasn't been proved yet |
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B. |
an educated guess that has been proved |
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C. |
a ''shot in the dark'' guess that has been proved |
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D. |
an educated guess that hasn't been proved yet |
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Hint |
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15. |
How many counterexamples are needed to prove a conjecture wrong? |
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A. |
2 |
B. |
4 |
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C. |
1 |
D. |
3 |
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Hint |
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16. |
Use an exponent to write 177,147 as a power of 3. |
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A. |
311 |
B. |
39 |
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C. |
317 |
D. |
319 |
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Hint |
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17. |
Tell whether the statement is sometimes true, always true, or never true for positive values of n. If it is sometimes true, state for what value it is true.
4n = 6,561. |
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A. |
sometimes true, n = 8 |
B. |
never true |
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C. |
always true |
D. |
sometimes true, n = 7 |
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Hint |
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18. |
Identify the growth factor in the equation p = 682,363 × 1.08n where p is the population and n is the number of years after 2001. |
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A. |
682,363 |
B. |
1.08 |
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C. |
p |
D. |
n |
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Hint |
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19. |
Find a solution to the equation using backtracking.
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A. |
a = 5 |
B. |
a = 2 |
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C. |
a = –2 |
D. |
a = 3 |
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Hint |
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20. |
Find a solution to the equation by doing the same thing to both sides.
8p + 14 = 2p – 22 |
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A. |
p = –6 |
B. |
p = 1 |
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C. |
p = –1 |
D. |
p = 6 |
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Hint |
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